Fair-lead for donkey-engines.



No. 852,062. PATENTED APR. 30, 1907.

H. HOLMES. FAIR LEAD FOR DONKEY ENGINES.

APPLICATION FILED SEPT. 19, 1906.

.Illl' IIIIII I UNITED STATES PATENT orricn f HARRY HOLMES, OF GRAOY, CALIFORNIA. FAIR-LEAD FOR DONKEY-ENGlNES.

Specification of Letters Patent. Patented April 30, 1907.

Application filed September 19,1906. Serial No. 335,337.

To all whom it may concern: per surface of body A is the sheave E, the

Be it known that I, HARRY HoLMns, a citidatter being held in place by the nut F.

zen of the United States, residing at Gracy, Mounted on a post G, carried by the body in the county of Mendocino and State of Cali- A, and having its grooved periphery su'llifornia, have invented certain new and useful ciently near that of the sheave E to guide Improvements in Fair-Leads for Donkeythe interposed cable, is the secondary sheave Engines; and I hereby declare the following II whose diameter is slightly less than that to be a full, clear, and exact description of of the sheave E.

the same, such as will enable others skilled After the cable is led between the periphto make and in the art to which it appertains cries of the sheaves E and II, whose axes use the same. of revolution are perpendicular, it is then In the manipulation of donkey engines led between the grooved sheaves I and J, the in connection with logging, the cable leading former being revolubly mounted on the from the spool or drum of the engine is conbody A, while the latter is mounted on the stantly changing its direction according to ivoted arm K which is normally held par the position of the load. Now to provide a allel to the axis of sheave I by means of the lead which will coin ensate for this shifting cross pin L. The axes of revolution of the osition of theloac and at the same time sheaves I and J are horizontal or at right ead the cable from the engine with a miniangles to those of sheaves E and II. mum amount of friction and haul is the Bearing against opposite sides of the cable prime object of my present invention. as it leaves the sheaves I and J are the ver- In carrying out my invention I have not tical twin elongated rollers M and N. In overlooked the requisites of strength and order to provide ample lubrication I have durability necessary to cope with excessive provided the grease cup 0 the screw plug of 2 5 strains, nor have I neglected to observe the which is arranged to force the lubricant to importance of simplicity of construction. the bearing of the sheave.

The several parts are so arranged as to be New from the description so far gone into not liable to derangement and are positive assuming that the cable is positioned relative in their action. The cable can be instantly to the several sheaves as shown by the broken 0 positioned in or as readily removed from the lines in Fig. 1, it will be readily seen that lead thereby obviating the necessity of costly the body A will swing around in either delays in the operation of the donkey. direction, the tangent to the sheaves E, II,

Other objects and advantages of the inven- I and J always pointing toward the load.

tion will appear in the following specifica- Should the load rise or fallabove or below tion to those familiar with logging, and the the level of the upper surface of the body A,

novel features thereof will be particularly the elongated nature of the rollers M and N pointed out in the appended claims. will compensate for such movement.

I am enabled to accomplish the objects of By simply removing the cross pin L the my invention by the means illustrated in the arm Ii can be thrown up and the cable reaccompanying drawings, in which moved or set in place as the case may be.

Figure 1 is a side elevation of the inven- It will be noted that the plane of the axes tion. Fig. 2 is a top view of the same. Fig. of the sheaves E and II is not parallel with 3 is a vertical section taken in the direction that of the axes of I and J By this conof the line :20 cc of Fig. 2. struction the body A will have a greater play 4 5 I will now set forth the construction of my in one direction than were the sheaves E and invention, and subsequently explain the op- II equidistant from the sheaves I andJ. Of eration of the same, reference being had to course this condition is on the assumption the above views by letter. that a right hand and a left hand lead are The main member or body A of the device employed.

so is mounted on the vertical post B which is I am aware that various changes in the mounted on the plate C, the latter being seform and proportion of parts of the devices cured to the corner of one of the out-reaches herein shown and described as an embodiof the engine. This body is held on the ment of my invention can be made without post B by means of a sunken nut D, while departing from the spirit or sacrificing any arranged to revolve on the contracted upper of the advantages thereof, and I therefore extremity of the post B and rest on the upreserve the right to make such changes and alterations as fairly my invention.

Having thus fully described my invention, what I claim and desire to secure by patent 1s:-

1. A device of the class described consist ing of a suitable body, a series of sheaves carried by said body and having vertical axes of revolution, a secondary series of sheaves arranged to guide the cable to said former sheaves and having horizontal aXes of revolution, vertical elongated rollers in line with said secondary sheaves, and a vertical post about which said body is arranged to revolve as set forth.

2. In combination with body revolubly mounted fall within the scope of a suitable post, a on said post, a;

sheave carried by said post, a secondary sheave carried by said body and having its aXis of revolution parallel to said post, a series of sheaves carried by said body and having their axes of revolution at right angles to said post, and elongated rollers carried by said body and arranged to guide the cable to said series of sheaves, and means for admitting said cable between said sheaves, substantially as set forth.-

In witness whereof I have signed my name to this specification in presence of two Wit-- nesses.

HARRY HOLMES. Witnesses:

ELIZABETH KINOAID, DOROTHY KINOAID. 

